What is Fracking?Hydraulic fracturing, commonly referred to as fracking, is the process of creating small cracks, or fractures, in underground geological formations to allow oil or gas to flow into the wellbore.
To fracture the formation, special fracturing fluids are injected down the wellbore and into the formation. These fluids typically consist of water, sand, and chemical additives. The pressure created by injecting the fluid opens the fractures. Sand is carried into the fractures by the fluid and keeps the fractures open to increase the flow of oil or gas to the wellbore.
Fracking is carried out on hydocarbon bearing formations that have low porosity and permeability, where other traditional method of extracting gas or oil would be uneconomical.